Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Yrjö Norokorpi"'
Autor:
Ann-Mari Kuparinen, Esa Huhta, Ville Hallikainen, Timo Kuuluvainen, Anna-Liisa Ylisirniö, Håkan Berglund, Yrjö Norokorpi, Tuomas Aakala, Kari Mikkola
Publikováno v:
Scandinavian Journal of Forest Research. 24:527-540
Adequate understanding of the factors that determine the establishment and survival of dead-wood-dependent species in natural forests is a prerequisite to the successful maintenance of these species in managed forests. This study investigated the fac
Publikováno v:
Journal of Environmental Management. 90:1427-1434
Nature-based tourism in protected areas has increased and diversified dramatically during the last decades. Different recreational activities have a range of impacts on natural environments. This paper reports results from a comparison of the impacts
Publikováno v:
Canadian Journal of Forest Research. 32:1577-1584
The study included 23 stands (at least 2 ha each in size) distributed from southern to northern Finland. These Norway spruce (Picea abies (L.) Karst.) dominated stands grew on fertile (OxalisMyrtillus and Myrtillus site types) mineral soils. Each s
Publikováno v:
Polar Record. 38:233-240
The responses of Betula pubescens Ehr. (European white birch), B. pendula Roth (silver birch) and two provenances of Pinus sylvestris L. (Scots pine) to solar ultraviolet (UV < 400 nm) radiation were investigated in a UV-exclusion field experiment du
Publikováno v:
Forest Ecology and Management. 151:133-138
The study deals with two field experiments totalling 52 sample plots in naturally uneven-sized Norway spruce ( Picea abies (L.) Karsten)-dominated mixed forests on fertile upland sites in Southern Finland. The stands were treated with alternative met
Publikováno v:
Forestry. 74:171-185
Summary Two- and three-aged stands are alternative structures that can provide continuous cover and a diversity of tree sizes. The silviculture of these multi-aged structures consists, in part, of treatments to allocate growing space to understorey a
Publikováno v:
Forest Ecology and Management. 118:223-243
This article presents the concepts and models of diversity-oriented silviculture in the Boreal Zone of Europe based on literature, Finnish national forest inventories and field experiment data. The basic idea following the natural processes of forest
Publikováno v:
Forest Ecology and Management. 115:213-220
Abundance of tree species and variation in tree size, age and genetic composition are the most relevant components of diversity in a forest stand. The aim of this study was to develop a within-stand diversity index and classification for between-stan